Safety device for bottles



June 5, 1923.

1,457,706 H. P. KRAFT I SAFETY DEVICE FOR BOTTLES Filed April 20. 1921 gvwewtoz Patented June5, 1923. l

UNITED sTArEs HENRY r. KRAFT, or RIDGEwoon, NEW. JERSEY.

SAFETY "nnvrcn v FOE no'r'riins.

Application filed April 20, 1921. Serial No. 463,009.

' Safety Devices for Bottles, of which the following is a specification.

This invention relates to safety devices for 7 bottles, and provides a construction whereby the stoppers thereof are protected from accidental opening. 1

The invention is particularly designed for use in connection with ethyl-chloride bottles or tubes whicharecommonly. provided with a pivoted stopper, one end of whichcarries a pad designed to fit over the capillary opening at the mouth of the bottle, and the other end of which is adapted to be moved by the finger of the operator to permit the ejection of the fluid under the pressure generated by the heat of the hand. --Such stoppers are usually held in place by a spring which in order to provide ease of manipulation, is usually of insufficient strength to prevent accidental opening, at least to a sufficient extent to permit slow leakage of the contents, either in the form of liquid or gas. Frequently the spring becomes sufficiently weakened under use to also permit such slow leakage. In transportation. and storage also there is danger of either the complete opening of the stopper, or sulficient breaking of the seal to permit loss ofthe liquid.

According to the present invention I provide a very simple devicein the form of a clip or guard which is designed to engage the bottle and stopper during periods of disuse, and to hold-the stopper with its body firmly in closed position.

In the drawing, wherein I have shown one form of the invention,-r v I Figure 1 is a side elevation, showing the stopper handl and guard partly in sec tion.

Fig. 2 is a perspective view of the guard detached.

Referring to the drawings, wherein I have shown the invention as applied to an ethylchloride tube,let A indicate the body of the tube, B its neck and C the sleeve,upon which the stopper D is mounted. The stopper D is provided with. a closing pad E and a handle portion F on opposite sides of the pivot G. In the construction shownthe stopper is normally :held in closed position- :by a spring H which isprefe'rably shaped to constitute-the pivot G, and is provided with a coil I to producea spiral spring effect, and an arm J which bears against erably the. stopper handle is made convex on its outer surface to produce a smooth manipulating member I and correspondingly concave on. its inner surface,-. which espe-- cially provides a satisfactory arm J of the spring. I

recess: for the" A thus far described, th parts -6 usual construction, it being .the intention that the spring I-I shall provide sufficient force to maintain thepad E overthecapillary opening of the bottle month (not shown). 7 As before stated,}because of the, w

desircbility of avoiding too strong a spring, the weakening of the spring, and other contingencies, it frequently happens that the pad E is not pressedwith sufficientf0rce against'the bottlemouth to prevent leakage of the contents either in the form of liquid or gas, it being understood that the I ethylchloride and similar substances "volatilize at a temperature which is considerably below the average temperature of the room in which the roduct is used.

In the simplest form of. the invention which is illustrated, the guard comprises a two-armed member K,'the upper arm L of which is designed to engage the bottle neck near the top of the latter (or in the constructo do this in the present construction, the

device is provided with a slot P which is adapted to receive the endof the springI-I, the latter being usually bent to form an eye Q, as illustrated. Preferably the ends of the arms L and M are formed with concave surfaces L M respectively, so that they. fit the corresponding convex surfaces of the sleeve and neck. When once adjusted. in

place, the stopper is held firmly in its closed 3' position with sufficient pressure'to force the pad E firmly down to its seat. Should-the I 60 the underside of the stopper handle F. Pref? pad E become compacted, or wear in use, the device is easily adjusted by bending the arms toward each other slightly, which forces the bend O outwardly to take up such. Wear. I

The device is adjusted in place by first slipping the bend 0 into position, as shown in Fig. 1, with the eye Q in its slot, and then adjusting the legs over the sleeve and neck, there being sufiicient springiness in the stopper to permit the slight movement required to enable the arms L and M to pass ove theconcaved surfaces of the sleeve and neck.

While I have shown and described one form of the invention, it will be understood that I do not wish to be limited thereto as various changes may be made therein without departing from the spirit of the invention.

What I claim is 1. The combination with a bottle and a spring pressed stopper therefor, of a guard supplemental to the spring adapted to hold the stopper in itsclosed position.

2. The combination with a bottle and a spring pressed hinged stopper therefor, of a removable guard adapted to hold the stopper in its closed position.

3. The combination with a bottle having a, pivoted stopper, having a closure pad at one end and a handle at the other end, of a guard engaging the stopper and bottle and adapted to hold the stopper in its closed position, saidguard comprising a two-armed structure, the ends of the arms being adapted to engage the bottle and the intermediate portion being adapted to engage one end and a handle at the other end, of a guard engaging the stopper and bottle, and adapted to hold the stopper in its closed position, said guard comprising a metal member bent to form two arms which are adapted to engage the bottle, and abent portion adapted to engage the stopper, the stopper having a spring and the guard having a slot to receive a portion of the spring.

6. A guard for the purposes described, comprising a two-armed member having a middle bent portion adapted to engage a.

stopper andmaintain it in engagement with the mouth of a bottle, the ends of the arms being-adapted to engage the bottle.

7. A guard for the purposes described, comprising a two-armed member having a middle bent portion adapted to engagea stopper and maintain it in engagement with the mouth of a bottle, the ends of the arms being adapted to engage the bottle, and be ing shaped to seat thereagainst.

In witness whereof, I have hereunto signed niy'naine.

HENRY P. KRAFT. 

